.carousel-section {
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    padding-top: 41.67%; 
    overflow: hidden;
}

.carousel, .second-carousel-inner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

.carousel-nav {
    position: absolute;
    bottom: 30px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 15px;
    z-index: 10;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
}

.carousel-dot.active {
    background-color: white;
    transform: scale(1.2);
}

.carousel-dot:hover {
    background-color: rgba(255, 255, 255, 0.8);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .carousel-section {
        padding-top: 56.25%; /* 16:9 比例在手机上更合适 */
    }
    
    .carousel-nav {
        bottom: 15px;
        gap: 10px;
    }
    
    .carousel-dot {
        width: 10px;
        height: 10px;
    }
}

@media (max-width: 480px) {
    .carousel-section {
        padding-top: 66.67%; /* 3:2 比例在小屏幕手机上更合适 */
    }
    
    .carousel-nav {
        bottom: 10px;
        gap: 8px;
    }
    
    .carousel-dot {
        width: 8px;
        height: 8px;
    }
}

.indexMainTit {
    text-align: center;
    margin-bottom: 20px;
}

.indexMainTit a {
    text-decoration: none;
    color: #333;
    display: inline-block;
}

.indexMainTit div {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.indexMainTit .mtbold {
    font-size: 18px;
    color: #666;
    font-weight: 500;
    letter-spacing: 2px;
    margin-top: 0;
}

.company-introduction {
    padding: 80px 0;
    position: relative;
}

.wd.fixed {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.intro-container {
    display: flex;
    flex-wrap: wrap;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 50px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.intro-containerImg {
    flex: 1;
    min-width: 300px;
    max-width: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
}

.intro-containerImg img {
    width: 100%;
    height: auto;
    max-height: 100%;
    object-fit: contain;
    transform: scale(1.05);
}

.intro-containerText {
    flex: 1;
    min-width: 300px;
    max-width: 50%;
    padding: 40px;
    display: flex;
    align-items: center;
}

.intro-containerDiv {
    width: 100%;
}

.productTit {
    margin-bottom: 25px;
}

.productTit a {
    display: block;
    text-decoration: none;
}

.productTit b {
    display: block;
    font-size: 2.2rem;
    color: #333;
    margin-bottom: 8px;
    font-weight: bold;
}

.productTit .mtbold {
    display: block;
    font-size: 1.4rem;
    color: #666;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.intro-containerInfo {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin-bottom: 30px;
}

.checkMore {
    position: absolute;
    bottom: 30px;
    right: 40px;
    display: inline-block;
    padding: 10px 30px;
    background: #1F3E5D;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid #1F3E5D;
}

.checkMore:hover {
    background: white;
    color: #1F3E5D;
}

.aboutList {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    list-style: none;
    padding: 0;
    margin: 0;
    justify-content: center;
}

.aboutList li {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    position: relative;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.aboutList li:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.aboutList .text {
    padding: 25px;
    background: white;
    position: relative;
    z-index: 2;
}

.aboutList .text a {
    text-decoration: none;
    display: block;
    color: #333;
}

.aboutList .text img {
    width: 50px;
    height: 50px;
    margin-bottom: 15px;
    object-fit: contain;
}

.aboutList .text div {
    font-size: 1.3rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.aboutList .text p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.6;
}

.aboutList .img {
    position: relative;
    overflow: hidden;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
}

.aboutList .img img {
    width: 100%;
    height: auto;
    max-height: 100%;
    object-fit: contain;
    transform: scale(1.1);
}

.aboutList .img p {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(1, 20, 78, 0.9);
    color: white;
    margin: 0;
    padding: 15px;
    text-align: center;
    font-size: 1.1rem;
    font-weight: 500;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.aboutList li:hover .img p {
    transform: translateY(0);
}

.indexBrand {
    padding: 30px 0;
}

.indexBrand-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.indexBrand-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

@media (max-width: 768px) {
    .indexBrand-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .img-box {
        height: 150px;
    }
    
    .hover-word .word {
        font-size: 20px;
    }
}

@media (max-width: 576px) {
    .indexBrand-content {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .img-box {
        height: 180px;
    }
    
    .hover-word .word {
        font-size: 24px;
    }
}

.content-box {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    background: #fff;
}

.content-box:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.content-box .box {
    display: block;
    text-decoration: none;
    color: #333;
    height: 100%;
}

.img-box {
    height: 200px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow: hidden;
}

.img-box img {
    height: 100%;
    width: auto;
    max-width: 100%; 
    object-fit: contain; 
}

.hover-word {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.content-box:hover .hover-word {
    opacity: 1;
}

.hover-word .word {
    color: #fff;
    font-size: 28px;
    font-weight: bold;
}

.join-container {
    width: 100%; 
    margin: 0 auto;
    background-color: #CFD8DC;
    border-radius: 0; 
    box-shadow: none; 
    padding: 60px 0; 
}

.join-inner-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px; 
    background-color: white; 
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08); 
}

.main-title {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.main-title h1 {
    font-size: 32px;
    color: #333;
    margin-bottom: 8px;
}

.main-title p {
    font-size: 18px;
    color: #666;
    font-weight: 300;
    letter-spacing: 1px;
}

.content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.tab-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.tab-btn {
    padding: 14px 30px;
    background-color: #f5f5f5;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background-color: #eaeaea;
    color: #333;
}

.tab-btn.active {
    background-color: #1F3E5D;
    color: white;
}

.content-area {
    display: flex;
    gap: 40px;
    min-height: 400px;
}

.image-container {
    flex: 0 0 400px;
    height: 400px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    position: relative;
}

.carousel-slides {
    display: flex;
    transition: transform 0.5s ease;
    height: 100%;
    width: 100%;
}

.slide {
    min-width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.slide-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain; 
    display: block;
    margin: auto;
}

.slide video {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
    margin: auto;
}

.text-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 20px 0;
}

.text-content {
    display: none;
}

.text-content.active {
    display: block;
}

.text-content h3 {
    font-size: 28px;
    color: #1F3E5D;
    margin-bottom: 20px;
    font-weight: 600;
    border-bottom: 2px solid #1F3E5D;
    padding-bottom: 10px;
    display: inline-block;
}

.text-content p {
    font-size: 14px;
    line-height: 1.8;
    color: #444;
    margin-bottom: 25px;
	text-indent: 2em;
	letter-spacing: 0.08em;
}

.contact-info {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 6px;
    border-left: 4px solid #1F3E5D;
}

.contact-info strong {
    color: #1F3E5D;
    display: block;
    margin-bottom: 8px;
    font-size: 16px;
}

.contact-info p {
    color: #666;
    margin-bottom: 0;
    font-size: 16px;
}

.cta-button {
    display: inline-block;
    background-color: #1F3E5D;
    color: white;
    padding: 14px 32px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: 10px;
    border: 2px solid #1F3E5D;
}

.cta-button:hover {
    background-color: white;
    color: #1F3E5D;
}

.contact-section {
    padding: 20px 0;
    text-align: center;
}

.contact-section h2 {
    font-size: 2.5rem;
    color: #1F3E5D;
    margin-bottom: 20px;
    font-weight: bold;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.contact-form {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
    font-size: 1rem;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: all 0.3s;
    background-color: #f9f9f9;
}

.form-control:focus {
    outline: none;
    border-color: #1F3E5D;
    background-color: white;
    box-shadow: 0 0 0 3px rgba(1, 20, 78, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    font-family: "Microsoft Yahei", sans-serif;
}

.btn-submit {
    display: block;
    width: 100%;
    padding: 16px;
    background-color: #1F3E5D;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 20px;
}

.btn-submit:hover {
    background-color: #1F3E5D;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(1, 20, 78, 0.2);
}

.certification-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.certification-modal.active {
    display: flex;
}

.certification-modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.certification-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: #1F3E5D;
    color: white;
}

.certification-modal-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.certification-modal-close {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.certification-modal-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.certification-modal-body {
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f8f9fa;
}

.certification-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.certification-modal-footer {
    padding: 15px 20px;
    text-align: center;
    background-color: #f8f9fa;
    border-top: 1px solid #eee;
    font-size: 14px;
    color: #666;
}

.certification-loading {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
}

.certification-loading.active {
    display: block;
}

.certification-loading:after {
    content: " ";
    display: block;
    width: 40px;
    height: 40px;
    margin: 8px;
    border-radius: 50%;
    border: 3px solid #1F3E5D;
    border-color: #1F3E5D transparent #1F3E5D transparent;
    animation: certification-loading 1.2s linear infinite;
}

@keyframes certification-loading {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}